摘要
为研究日粮中添加香菇多糖和七清败毒颗粒对断奶仔猪生长性能、免疫指标以及猪繁殖与呼吸障碍综合征(PRRS)的防控效果的影响,本试验在某规模化猪场随机选取断奶仔猪500头,随机分为2组,每组5个重复,每个重复50头,分别为对照组和试验组,试验组日粮中添加香菇多糖和七清败毒颗粒,试验周期28 d。试验期间对断奶仔猪的生长性能、部分免疫指标、PRRS抗体水平、抗原阳性率进行检测和统计。结果显示:生长性能方面,与对照组相比,试验组断奶仔猪在试验期间增重、平均日增重(ADG)极显著提高5.03%、3.45%(P<0.01),料重比(F/G)显著降低2.12%(P<0.05);试验组断奶仔猪的发病率极显著降低63.64%(P<0.01),成活率显著升高2.93%(P<0.05);血清免疫指标方面,第14天,试验组IgA显著提高5.88%(P<0.05);第28天,试验组IgA、IgG显著提高5.74%、5.77%(P<0.05),试验组TNF-α、IL-6显著降低4.64%、10.19%(P<0.05)。抗体检测方面,第28天,试验组S/P均值显著降低22.81%(P<0.05),离散度由65.12%降至55.24%,S/P≥2.0的占比由24.00%降至8.00%。结果提示,香菇多糖和七清败毒颗粒可以有效提高断奶仔猪生长性能、提高免疫力、维持猪群PRRSV抗体稳定,起到防控PRRS的效果。
This study aimed to understand the effects of lentinan and qiqing baidu granules on weaned piglets’growth performance,immune indexes and control of porcine reproductive and respiratory syndrome(PRRS).During a 28-day trial period,a total of 500 weaned piglets were randomly divide into 2 groups with 5 replicates per group,each with 50 replicates,the experimental group,which received herbal extracts in their feed,and the control group.The weaned piglets’growth performance,some immune indexes,PRRS antibody levels,the positive rate of PRRSV were tested and analyzed.The results showed that in terms of growth performance,compared with the control group,the weight gain and average daily gain(ADG)of experimental group was increased by 5.03%and 3.45%respectively(P<0.05),the ratio of feed to gain(F/G)of experimental group was significantly decreased by 2.12%(P<0.05).The incidence rate of weaned piglets in the test group was reduced by 63.64%significantly(P<0.01).The survival rate increased by 2.93%significantly(P<0.05);In terms of serum immune indexes,on day 14,the IgA of the experimental group increased by 5.88%significantly(P<0.05).On day 28,the IgA and IgG levels in the experimental group increased by 5.74%and 5.77%significantly(P<0.05),TNF-αand IL-6 decreased by 4.64%and 10.19%significantly(P<0.05).In terms of antibody testing,on day 28,the average S/P of the experimental group decreased by 22.81%significantly(P<0.05),the dispersion decreased from 65.12%to 55.24%,and the proportion of S/P≥2.0 decreased from 24.00%to 8.00%.These results indicated that the use of lentinan and qiqing baidu granules could effectively improved weaned piglets'growth performance,enhance immunity,maintain stable PRRSV antibody,effectively controling the PRRS.
作者
张国华
邢思毅
张备
闫先超
李静静
王丽坤
薛沾枚
张艳
郝彩虹
刘雪松
王岩
沈思思
董佳强
姚爽
金振华
ZHANG Guohua;XING Siyi;ZHANG Bei;YAN Xianchao;LI Jingjing;WANG Likun;XUE Zhanmei;ZHANG Yan;HAO Caihong;LIU Xuesong;WANG Yan;SHEN Sisi;DONG Jiaqiang;YAO Shuang;JIN Zhenhua(Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang Province 161005,China;Shandong Xinde Technology Co.,Ltd.,Qingdao,Shandong Province 266101,China)
出处
《中国饲料》
北大核心
2024年第15期35-40,共6页
China Feed
基金
黑龙江省重点研发计划(GA21B006)
黑龙江省省属科研院所科研业务费项目(CZKYF2022-1-C036)
黑龙江省农业科学院畜牧兽医分院自拟课题(ZNKT-202204)。
关键词
香菇多糖
七清败毒颗粒
断奶仔猪
生长性能
猪繁殖与呼吸障碍综合征
lentinan
qiqing daidu granules
weaned piglets
growth performance
porcine reproductive and respiratory disorder syndrome
